Gravitational & Electrostatic Fields A field can be defined as A region in which an object will experience a force, such as gravitational or electrostatic, at a distance A gravitational field c...
The Doppler Equation Calculating Doppler Shift When a source of sound waves moves relative to a stationary observer, the observed frequency can be calculated using the equation below: Doppler shift...
Uses of The Doppler Effect The?Doppler effect?is important in many key areas of science including: Radar?readings for moving objects Measuring the?rate of blood flow?within a patient Finding planet...
GCSE學(xué)習(xí)結(jié)束后，學(xué)生開始逐步接觸A-Level課程學(xué)習(xí)然后開始準(zhǔn)備大學(xué)申請(qǐng)。那么在G5名校中，除了A-Level成績，GCSE是否也會(huì)作為評(píng)估標(biāo)準(zhǔn)呢？如果是GCSE成績也要評(píng)估，那么G5對(duì)他又有哪些要求呢？ 牛津大學(xué) ...
The Doppler Effect When a source of sound, such as the whistle of a train or the siren of an ambulance, moves?away?from an observer: It appears to?decrease?in frequency, i.e. it sounds?lower?in pit...
Resolvance of Diffraction Gratings In order to know if a diffraction grating is able to resolve two wavelengths, the?resolving power?of the diffraction grating must be found This is based on the?Ra...
Rayleigh Criterion Calculations The Rayleigh Criterion can be mathematically described by considering?angular separation?and?single-slit diffraction Angular separation can be calculated using the e...
Diffracting Aperture A circular aperture allows a cone of light to enter a region behind the aperture Examples of circular aperture include: A lens within an optical device such as a camera The pup...
Thin Film Interference Thin film interference causes the iridescence seen in: Nature on peacock feathers Glossy flower petals Soap bubbles The shiny side of a CD Thin layers - or films - of oil on ...
